Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Dec. 25, 2016	Dec. 27, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 2,302,400	$ 7,330,300
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,361,200	3,568,300
Non-cash stock-based compensation expense	291,100	510,600
Deferred income taxes and other	(498,600)	(555,300)
Change in trade accounts receivable	(12,666,100)	(7,638,900)
Change in product inventory	(9,225,800)	6,432,100
Change in prepaid expenses and other current assets	925,100	5,337,700
Change in trade accounts payable	16,630,300	(2,646,000)
Change in payroll, benefits and taxes	(240,700)	(816,800)
Change in income and sales tax liabilities	343,300	342,500
Change in accrued expenses and other current liabilities	(615,100)	(4,170,700)
Net cash provided by operating activities	607,100	7,693,800
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(1,913,300)	(2,359,100)
Net cash used in investing activities	(1,913,300)	(2,359,100)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of debt issuance costs	(218,200)
Payments on long-term debt	(1,894,700)	(187,900)
Proceeds from issuance of stock	68,300	81,200
Cash dividends paid	(4,989,700)	(4,961,000)
Purchases of treasury stock and repurchases of common stock from employees and directors for minimum tax withholdings	(187,600)	(826,900)
Excess tax benefit from stock-based compensation		510,400
Net cash used in financing activities	(7,221,900)	(5,384,200)
Net decrease in cash and cash equivalents	(8,528,100)	(49,500)
CASH AND CASH EQUIVALENTS, beginning of period	16,882,800	7,524,000
CASH AND CASH EQUIVALENTS, end of period	$ 8,354,700	$ 7,474,500